The World Largest Freshwater Fish in The World

Captured and released in a Thai river, a giant stingray may have broken all records

The veterinary Nantarika Chansue along to the team that captured and released the giant freshwater stingray, the Mae Klong river, Thailand.

Fish record: the giants of water stingray record: the giants of water stingray unicorn and other Cyrano nearly two and a half meters wide by 4.3 long: they are the size of the female giant freshwater stingray captured and then released into the Mae Klong river, in Thailand, a group of scientists . The estimated weight was between 300 and 360 pounds: the team was unable to establish with precision, said Zeb Hogan, a fellow of the National Geographic Society and professor of biology at the University of Nevada in Reno, “the animals are so big and clumsy that it is very difficult to weigh them without harming them. But it was really huge, even compared to other individuals of his kind, and certainly deserves a place among the largest freshwater fish in the world. “

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While the fish was kept for a short time in a cage, Nantarika Chansue, veterinary and professor at Chulalongkorn University in Bangkok, made with a portable ultrasound and found that she was pregnant with two small (the stingrays are ovoviviparous). The same scholars had already captured and marked the animal in 2009; even then she was pregnant, a sign that the area is a breeding area. At the time, the parsnip was two meters wide but a bit ‘longer (four and a half meters): “Maybe his tail was shortened to an accident,” says Nantarika. On his body were also bite marks.

Knowing how long has it been since you have studied the animal, the scientists were able to obtain more information on the growth of this species. Like all fish, stingrays giants continue to grow throughout their lives, as long as find enough food. They feed on other fish, shrimp, shellfish and any other food they can find on the bottom of their stream. It is unknown how they can live long, but based on the size Nantarika believes that the specimen had captured between 35 and 40 years of age.

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True Record?

Hogan, who runs the project Megafish Project, dedicated to the study of giant freshwater stingray giant claims that so far the largest ever captured had an estimated weight of 693 pounds, although there are unconfirmed reports of specimens of 500 or even 600 pounds. According to the Guinness Book of World Records, the largest freshwater fish would be the giant catfish of the Mekong, “which can reach 300 pounds.” A Guinness spokesman said they did not have said on the record until it was made and considered a formal application.

On the tip of the tail parsnip giant freshwater it has a plug long up to 38 centimeters (more than that of any other species of parsnip). The fish uses it to defend himself, injecting a powerful poison that can even kill, although wounds in humans are very rare.

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